Home / 8,151.81-11,249.40-4,615.01

Finding the Fourth Proportional to 8,151.81, 11,249.40 and 4,615.01

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Solution

The fourth proportional to 8,151.81, 11,249.40 and 4,615.01 is: 6,368.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,151.81 : 11,249.40 = 4,615.01 : x
  2. Step 2: Convert to fraction form
    8,151.81/11,249.40 = 4,615.01/x
  3. Step 3: Cross multiply
    8,151.81x = 11,249.40 × 4,615.01
  4. Step 4: Simplify right side
    8,151.81x = 51,916,037.25
  5. Step 5: Solve for x
    x = 51,916,037.25/8,151.81
  6. Step 6: Final answer
    x = 6,368.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.